AC Adapter Battery Charger Power Supply for Lenovo ThinkPad X1 Carbon 344428U Ultrabook, Lenovo ThinkPad X1 Carbon Touch Ultrabook 45N0236, 45N0237, 45N0238, 0B46994, 0B46995, 0B46996,0B46997 output: 20V~4.5A~90W Input: 100~240V~1.5A 50/60Hz Power dimensions: USB Rectangular shape(pin) Fit for Lenovo Thinkpad X1 Carbon T440 E431 Lenovo IdeaPad Z510 6277-9QU PA-1900-081 45N0236, 45N0237,0B47002, 0B47003 Package:One power charger +One power cord Our Service: Focus On Providing Quality Power Products and Excellent Customer Service,24 x 7 Email Support and12 Months warranty, 30 Days Money Back Guarantee! Buy with confidence!